Ali cloud node to achieve short message interface, and the phone number by caching, limiting frequently send text messages via Redis expiration time

1, first install Redis, npm install redis --save

RedisHelper.js

const redis = require('redis');
function SetString(key,value) {
    let redishost = global.urls.controllers.RedisServer.split(":")[0];
    let redisport = global.urls.controllers.RedisServer.split(":")[1];
    const client = redis.createClient(redisport, redishost, {});
    client.select(2, function() { /* ... */ });
    //错误监听？
    client.on("error", function (err) {
        console.log("Error " + err);
    });
   
    client.set(key, value,redis.print);
    // 三分钟后过期
    client.expire(key, 180);
    client.quit();
}

function GetString(key) {
    return new Promise((resolve, reject) => {
        let redishost = global.urls.controllers.RedisServer.split(":")[0];
        let redisport = global.urls.controllers.RedisServer.split(":")[1];
        const client = redis.createClient(redisport, redishost, {});
        client.select(2, function() { /* ... */ });
        //错误监听？
        client.on("error", function (err) {
            console.log("Error " + err);
        });
        // This will return a JavaScript String
        client.get(key,function(err,reply){
            if (err) throw err;
            console.log('Got: ' + reply);
            resolve(reply)
            client.quit();
        });
    })
}
exports.SetString = SetString;
exports.GetString = GetString;

config.josn

controllers:{"RedisServer":"127.0.0.1:6379"}

// and generates a random number; the configuration file in a global variable 
the let the require FS = ( "FS" );
 function RangeCode (length) {
 // randomly generated codes specified number 
    var Range = function (Start, End) {
         var Array = [];
         for ( var I = Start; I <End; ++ I) Array.push (I);
         return Array; 
    }; 
    the let getnum = function () { 
        the let NUM = Math.floor (Math.random () * 10 );
         IF (NUM == 0 ) {
             return getnum (); 
        } 
        the else
            return num;
    }
    var randomstr = range(0, length).map(function (x) {
        return getnum();
    }).join('');
    return randomstr;
}
function UpdateConfig() {
    let configfile = "../config/ServerConfig.json";
    var urls = JSON.parse(fs.readFileSync(configfile));
    global.urls = urls;
    return true;

}
exports.RangeCode = RangeCode;
exports.UpdateConfig = UpdateConfig;

2, texting

//npm install @alicloud/pop-core -S

const log = require('./logger');
const utiltools = require('./UtilTools');
const redis = require("./RedisHelper");

the async function SendSMSCode (IP, phoneNum, the callback) {
     the try {
         // forming short code 
        the let utiltools.RangeCode code = (. 6 );
         // set the expiration time codes 3min, the class is instantiated 
        the let codeobj = new new smsCode.CMSCode (IP, code, phoneNum,. 1, new new a Date (( new new a Date ()) the getTime (). 3 * 60 + * 1000. )); 
        const the SMSClient = the require ( '@ alicloud / SMS-SDK' )
         // ACCESS_KEY_ID / actual application ACCESS_KEY_SECRET Alternatively account information 
        const accessKeyId = '***' 
        const secretAccessKey = '***'
         // initialization sms_client
        var SMSClient = new new the SMSClient ({accessKeyId, secretAccessKey}) 
        the let redisTemp = the await redis.GetString (phoneNum);
         IF (redisTemp && new new . a Date () the getTime () - redisTemp <1000 ) { 
            log.logger.info ( "Get Redis cache Mobile time: "+ redisTemp); 
            the let returnobj = {the Result: 0, resultObj:"! occurs too often " }; 
            callback.send (returnobj); 
            callback.end (); 
            return ; 
        } 

        // send message 
        smsClient.sendSMS ({ 
            PhoneNumbers: phoneNum, 
            SignName: 'fishing App', 
            TemplateCode: 'the SMS *** _' , 
            TemplateParam: '{ "code":' + + code '}' 
        }) the then (. Function (RES) { 
            the let {Code} = RES;
             IF (Code === 'the OK ' ) {
                 // returns the process parameters 
                log.logger.info ( "sent successfully NUM:" phoneNum + + "code:" + code); 
                SetSMSArray (codeobj); 
                the let returnobj = {the Result:. 1 }; 
                callback.send (returnobj ); 
                callback.end (); 
            } the else {
                log.logger.error("发送失败:" + Code);
                let returnobj = {Result: 0, Resultobj: "返回失败",err};
                callback.send(returnobj);
                callback.end();
            }
        }, function (err) {
            log.logger.error(err);
            var returnobj = {Result: 0, Resultobj: "错误",err};
            callback.send(returnobj);
            callback.end();
        })
    } catch (Exception) {
        log.logger.error(Exception);
    }
}

function CompareSmsCode(phonenum, code) {
    var i = global.SMScodearray.length;
    while (i--) {
        if (global.SMScodearray[i].getPhonum() == phonenum) {
            if ((global.SMScodearray[i].getExpireTime() - new Date()) > 0) {
                log.logger.debug("验证未过期:" + global.SMScodearray[i].getExpireTime());
                return code == global.SMScodearray[i].getCode();
            }
            else {
                log.logger.debug("验证码已过期:" + global.SMScodearray[i].getExpireTime());
                return false;
            }

        }
    }
    return false;
}

function SetSMSArray(smsmodel) {
    // 定义全局存手机号和验证码
    var i = global.SMScodearray.length;
    let isexist = false;
    while (i--) {
        if (global.SMScodearray[i].getPhonum() == smsmodel.getPhonum()) {
            global.SMScodearray[i].setTimes(global.SMScodearray[i].getTimes() + 1);
            global.SMScodearray[i].setCode(smsmodel.getCode());
            global.SMScodearray[i].setExpireTime(smsmodel.getExpireTime());
            isexist = true;
        }
    }
    if (!isexist) {
        global.SMScodearray.push(smsmodel);
    }
　　//动态存手机号
    redis.SetString(smsmodel.getPhonum(), new Date().getTime())
}